Building a PCI board?

leesing2k3 · Joined: 08 Nov 2005 Posts: 28

I am interested in building a PCI board using Microchip PIC but I could find much information about it especially that is related to Microchip.

I have found some:
http://www.fpga4fun.com/PCI.html
http://elm-chan.org/works/pci/report_e.html

Anybody has much information to share?

rwyoung · Joined: 12 Nov 2003 Posts: 563 Location: Lawrence, KS USA

Are you expecting the PIC to handle the PCI interface? Not very likely to happen at PCI bus speeds.

Or are you trying to interface a PIC to a Dragon board from fpga4fun? That is quite possible, placing one or more I/O ports of the PIC into the memory map of the FPGA chip on the Dragon.
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Rob Young
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leesing2k3 · Joined: 08 Nov 2005 Posts: 28

Simply saying that Microchip PIC is not fast enuf to talk to PCI?

rberek · Joined: 10 Jan 2005 Posts: 207 Location: Ottawa, Canada

PCI bus speeds are 33 MHz and 66 MHz, and PCI-X is 133 MHz.

Because an instruction cycle is 4 clocks, unless a PIC had a built in PCI interface, you would not be able to bit bang one, even for PCI-33.

r.b.